99870004 has 48 divisors (see below), whose sum is σ = 199386880. Its totient is φ = 43390080.

The previous prime is 99869989. The next prime is 99870011. The reversal of 99870004 is 40007899.

99870004 = 467² + 468² + ... + 737².

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 267562 + ... + 267934.

Almost surely, 2^99870004 is an apocalyptic number.

It is an amenable number.

99870004 is a deficient number, since it is larger than the sum of its proper divisors (99516876).

99870004 is a wasteful number, since it uses less digits than its factorization.

99870004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 680 (or 678 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 99870004 is about 9993.4980862559. The cubic root of 99870004 is about 463.9576668176.

The spelling of 99870004 in words is "ninety-nine million, eight hundred seventy thousand, four".